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genetics vocab

TermDefinition
heredity Passing of traits from parent to offspring.
allele A different form a gene may have for a trait.
genetics The science of how traits are inherited through alleles passed from one generation to another.
dominant The form of a trait that appears to dominate or mask another form of the same trait.
recessive The form of a trait that seems to disappear when a dominant trait is present.
punnett square A tool that shows how genes can combine; used to predict the probability of types of offspring.
genotype The genetic makeup of an organism for a trait.
homozygous An organism that has two identical alleles for a trait.
heterozygous An organism that has two different alleles for a trait.
phenotype A physical trait that shows as a result of an organism’s particular genotype.
sex-linked gene An allele inherited on a chromosome.
pedigree A diagram that shows the occurrence of a trait in a family.
genetic engineering Biological and chemical methods to change a cell’s DNA sequence to produce desirable traits or eliminate undesirable traits.
genome A map of the location of individual genes on every chromosome of an individual.
Created by: bysa0713
 



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